Update field nullable and default value

db/migrate/20220304091854_add_default_values_to_user.rb

@@ -0,0 +1,7 @@
+class AddDefaultValuesToUser < ActiveRecord::Migration[6.1]
+    def change
+        change_column :users, :picture, :string, :default => "gran"
+        change_column :users, :language, :string, :default => "en"
+        change_column :users, :private, :boolean, :default => false
+    end
+end

db/migrate/20220304092134_add_not_nullable_to_user.rb

@@ -0,0 +1,6 @@
+class AddNotNullableToUser < ActiveRecord::Migration[6.1]
+    def change
+        change_column :users, :language, :string, :default => "en", :null => false
+        change_column :users, :private, :boolean, :default => false, :null => false
+    end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2022_03_04_091218) do
+ActiveRecord::Schema.define(version: 2022_03_04_092134) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "pgcrypto"
@@ -186,9 +186,9 @@ ActiveRecord::Schema.define(version: 2022_03_04_091218) do
     t.integer "granblue_id"
     t.datetime "created_at", precision: 6, null: false
     t.datetime "updated_at", precision: 6, null: false
-    t.string "picture"
-    t.string "language"
-    t.boolean "private"
+    t.string "picture", default: "gran"
+    t.string "language", default: "en", null: false
+    t.boolean "private", default: false, null: false
   end
 
   create_table "weapon_keys", id: :uuid, default: -> { "gen_random_uuid()" }, force: :cascade do |t|